Air and gas mixer for explosive-engines.



, PATENTED JULY 14, 1903..

T. CHARLTON. AINAND GAS MIXER NoN NxPLosIvN ENGINES.

APPLITION FILED AUG. 27. 1902. F z

I N0 MODEL.

No. Is73%.,902. v

UNITED STATES Patented july 1li, 193.

PATENT OFFICE.

THOMAS CHARLTON, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR OFA ONE- HALFTO CHARLES RnDALLAS, OF PITTSBRG, PENNSYLVANIA.l

IR AND GAS MIXER FOR EXPLOSlVE-ENGINES.

SPECIFICATION forming part of Letters Patent No. 7 33,902, dated July 14, 1903.

Application l'iled August 27, 1902. Serial No. 121,248. (No model.)

To @ZZ whom t may con/cern: l

Be it known that I, THOMAS CHARLTON, a citizen of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented new and 'useful Improvements in Air and Gas Mixers for Explosive-Engines, of which the following is a specification.

This invention relates to air and gas mixers for explosive-engines, and the object of the invention is to provide a simple and effective apparatus of this charactervvherein the thorough admixture of the gas and atmospheric air is assured with practically no Waste of the gas.

The improved device includes a mixingchamber, gas-conveyin g passages connecting the gas and mixing chambers, and a valve arranged to control said air-inlets and the outlets of said gas-carrying passages. In the present case the gas-carrying passages consist of the bores of tubes uniting the gas and mixing chambers the delivery ends of which are arranged in alternation with said air-inlets. I provide a number of these tubes and a corresponding number of air-inlets, by reason of which the inflowing air and gas are divided into smallbodies, so as to thereby insure their intimate association when they enter the mixing-chamber. air-inlets and the outlets of the gas-conveying passages may be varied to suit the particular, gas with Which it is intended to oper-- ate the engine to which the improved mechanism is connected. The valvevin the present case for controlling the admission of air and gas into the mixing-chamber is of annular form, so that such air and gas can pass along opposite sides of the same in order to secure the rapid commingling of the former.

In the drawings accompanying and forming a part of this specification I have illustrated an embodiment of the invention.

Referring to said draWi'ngs,'Figure l is a vertical central sectional elevation of a valve mechanism including my improvements. Fig. 2 is a side elevation as seen from the left in Fig. I. Fig. 3 is a top plan view with the mixing-chamber and valve removed. Fig. 4 isabotton plan view of the air-chamber. Fig. 5 is a top plan view of the valve.

' ber.

The area of the Like characters referto like parts throughout the several figures.

Referring more particularly to Fig. 1, the numeral l indicates a chamber into which gas and air are admitted and admixed, the same, therefore, constituting a mixing-cham- A This chamber is adapted to-be connected with an explosive-engine of some suitable kind, it having in its upper side a dischargeport 2 for the delivery of the mixture of gas and air to the compression or explosion side of the cylinder (not shown) of such engine.

To the under side of the mixing-chamber is connected in somel suitable manner the chamber 3, and as air is received thereinto from the atmosphere Iwill term the same an airchamber.

Below the air-chamber is fastened the gaschamber 4., having an induction-port 5 for the admission of gas, which may be of any kind suitable for the purpose. The intermediate or air chamber 3 is open at one side, as at 6, for the admissionof atmospheric air.

The bottom of the mixing-chamber I has a relatively large circular opening 7, which is closed bythe top of the air-chamber 3. The top of the air-chamber has `anannular slot S of less diameter than the opening 7 but the slot and opening, it will be seen, are concentric.

The formation of the slot Sdivides the top of the air-chamber 3 into two parts, the inner one, 9, being of circular or-disk form and constituting ahead fonthe centrally-bored shank or body 10, which depends therefrom, and the bore of the shank extends through the disk or head 9 and receives the stem Il of a valve,

hereinafter more particularly described. The

lower end of the shank 10 is fitted into an opening or perforation in the top of the gaschamber et.

Arranged in annular order about the shank 10 are the vertically-disposed tubes l2, the upper ends thereof extending into the circular slot 8, so as to bring the upper V'edges of said tubes flush with the corresponding surface of the top of the air-chamber 3 in order to insure a proper seating of the valve. The lower ends of these tubes fit perforations in the bottom of the air-chamber 3, which, it will be seen, is in the nature of a dividingwall between the air and gas chambers. Said tubes convey the gas from the gas-chamber to the mixing-chamber. The spaces 13 between the upper or outlet ends of the tubes 12 constitute air inlets or ports, and these tubes the outlets of which constitute gas-iulets for the mixing-chamber and spaces are arranged in alternation, and there being a` valve being provided with a gasket or pack` ing l5, of rubber or other material, serving its usual purpose. lA spider 16 has its radial arms connected with the valve-ring 14C and constitutes a part of the valve, the stem o1 rod 11 ofthe valve extending through the central hub of the spider and being connected therewith in some suitable manner and dependingtherefrom. The stem or rod, it will be remembered, is disposed in the bore of the shank 10, and it will be seen that it extends below said shank and receives the coiled spring 17, bearing, respectively, against the bottom of the air chamber 3, and a stop, which may consist of a collar 13, suitably connected with said valve-stem. The purpose ot' the spring-17 is to close the Valve-ring and also hold the same normally against its seat, or closed, said valve being opened by and on the suction stroke ofthe piston ofthe cylinder with which the appliance is connected.

Then the valve-ring 14 is lifted or opened, the air and gas will be simultaneously admitted in the desired proportions into the mixing-chamber, and as they flow into such chamber theypass along opposite sides of said ring, so as to rapidly bring them into association with each other.

The air ofcourse is taken into the air-chamber 3 directly from the atmosphere through the opening 6 in said chamber and passes into the mixing-chamber through the ports 13, while the gas from the gas-chamber 4 ows through the tubes 12 into said mixingchamber.

The several parts may be made of the materials usually employed for like purposes in this art, and they may be arranged in any suitable way, for as to these points and oth ers I am not limited. The mechanism may be employed with advantage in connection with different types of explosive-engines.

Having described my invention, what I claim is- 1. The combination of a mixing-chamber, a gas-chamber and an intermediate chamber, the wall between the air-chamber and the mixing-chamber having an annular slot, gasconveying tubes connected at one end with the gas-chamber and at the other ends being fitted in said annular slot, the spaces between the outlets ot the tubes constituting airin lets, the outlets of said tubes constituting gasinlets, and the air-inlets and gas-inlets being annularly arranged, and an annular valve for controlling said air and gas inlets.

2. The combination ofa mixing-chamber, a gas-chamber and an intermediate air-chamber, the wall separating the mixing and air chambers having an annular slot to thereby form an inner circular member, the latter having a broad shank fitted into the wall between the air and gas chambers, gas-convey ing tubes tted at one end in the annular slot, the spaces in the slots between the outlets of such tubes constituting air-inlets and the outlets of said tubes constituting gas-inlets for the mixingchamber, and a valve for controlling the air and gas inlets having a stem fitted in the bore of said shank.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

TIIOM AS CHARLTON.

Witn csses GEO. W. REA, F. B. KEEFER. 

